public void TestSimpleParenDisplay()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(3);
mockView.SendOperatorPressed(Operator.Add);
Assert.AreEqual("3", mockView.Display);
mockView.SendModifierPressed(Modifier.OpenParen);
Assert.AreEqual("0", mockView.Display);
mockView.SendNumberPressed(4);
Assert.AreEqual("4", mockView.Display);
mockView.SendOperatorPressed(Operator.Add);
Assert.AreEqual("4", mockView.Display);
mockView.SendNumberPressed(2);
Assert.AreEqual("2", mockView.Display);
mockView.SendModifierPressed(Modifier.ClosedParen);
Assert.AreEqual("6", mockView.Display);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("9", mockView.Display);
}
public void TestMultipleDigitInput()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(4);
mockView.SendNumberPressed(5);
Assert.AreEqual("45", mockView.Display);
}
public void TestSubtract()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(4);
mockView.SendOperatorPressed(Operator.Subtract);
mockView.SendNumberPressed(5);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("-1", mockView.Display);
}
public void TestAdd()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(0.33333333333);
mockView.SendOperatorPressed(Operator.Add);
mockView.SendNumberPressed(5);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("5.3333", mockView.Display);
}
public void TestDivide()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(5);
mockView.SendOperatorPressed(Operator.Divide);
mockView.SendNumberPressed(3);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("1.6667", mockView.Display);
}
[Test] //note: need to test for user pressing equal prior to any other operations
public void TestDecimalInput()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(6);
mockView.SendModifierPressed(Modifier.Period);
mockView.SendNumberPressed(7);
mockView.SendNumberPressed(8);
Assert.AreEqual("6.78", mockView.Display);
}
public void TestComplexParenMathWithDecimalInput() //1.457 + (4*(8/3)-6) =
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(1);
mockView.SendModifierPressed(Modifier.Period);
mockView.SendNumberPressed(4);
mockView.SendNumberPressed(5);
mockView.SendNumberPressed(7);
mockView.SendOperatorPressed(Operator.Add);
mockView.SendModifierPressed(Modifier.OpenParen);
mockView.SendNumberPressed(4);
mockView.SendOperatorPressed(Operator.Multiply);
mockView.SendModifierPressed(Modifier.OpenParen);
mockView.SendNumberPressed(8);
mockView.SendOperatorPressed(Operator.Divide);
mockView.SendNumberPressed(3);
mockView.SendModifierPressed(Modifier.ClosedParen);
mockView.SendOperatorPressed(Operator.Subtract);
mockView.SendNumberPressed(6);
mockView.SendModifierPressed(Modifier.ClosedParen);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("6.1237", mockView.Display);
}
public void TestSimpleParens() // 3+(3/2) =
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(3);
mockView.SendOperatorPressed(Operator.Add);
mockView.SendModifierPressed(Modifier.OpenParen);
mockView.SendNumberPressed(3);
mockView.SendOperatorPressed(Operator.Divide);
mockView.SendNumberPressed(2);
mockView.SendModifierPressed(Modifier.ClosedParen);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("4.5", mockView.Display);
}
public void TestInvert()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(2);
mockView.SendModifierPressed(Modifier.Invert);
Assert.AreEqual("-2", mockView.Display);
mockView.SendOperatorPressed(Operator.Add);
mockView.SendNumberPressed(3);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("1", mockView.Display);
mockView.SendModifierPressed(Modifier.Invert);
Assert.AreEqual("-1", mockView.Display);
}
public void TestDoubleEqual()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(2);
mockView.SendOperatorPressed(Operator.Multiply);
mockView.SendNumberPressed(2);
mockView.SendModifierPressed(Modifier.Equal);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("8", mockView.Display);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("16", mockView.Display);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("32", mockView.Display);
}
public void TestClear()
{
var mockView = new MockView();
var controller = new CalculatorController(mockView);
mockView.SendNumberPressed(3);
mockView.SendOperatorPressed(Operator.Add);
mockView.SendModifierPressed(Modifier.Clear);
Assert.AreEqual("", mockView.Display);
//test functionality of calculator after clearing
mockView.SendNumberPressed(4);
mockView.SendOperatorPressed(Operator.Subtract);
mockView.SendNumberPressed(5);
mockView.SendModifierPressed(Modifier.Equal);
Assert.AreEqual("-1", mockView.Display);
}